Rotary runner for rotary and centrifugal pumps.



1.1 A. TRAYLOR.V ROTARY RUNNER FOR ROTARY AND GENTRIFUGAL PUMPS.

APPLICATION FILED JUNE 1?,.1913.-

lPabtentd Mar. 9, 191,5. v

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- lsiou. il; eiels u. constant pushing pi and State of @filmed-o9 heT/eieveuued new and useful Homey Runner for ilolzei'y luid .Centrifugal Pumps., 'of which following is speoieeziou. Y

lil/ly investies reletes izo immowieubsiu runners oi' @Expellers im: eeuinfilu l l mpeg und. the olojeet oi my invention 'e l i pleovie u rotary Weiser lifffiug suol ilu. fuuue: for eenfmiiugsl pumps elle@ ieeweugeli uml eclapted to equalize 'lle fpiessusve olli yloe te? on esuli ei'cle of elle lzuuuef: mui todo away with elle emol tueuse ou muluexfs or @he necessity of olouble suemou pumps. :moin this objeef. by .the m f f .gi-"mmol 'die soeompuswiug dmwugs. iu u meh;

ll., sifle elevetiou of roem-y ruimer for use iu oi eeulufiug'el pump. ou oligo View ofi iig. l. lig. 3., is u. sectional ele* ,.nou -o :my mpioved ruimer operelwively mounted. iz?. iis

the runner emi its cusiug; es illus- 'ormiog u i'lobefy/ Werber 'pu 1.

Similar 'eeters of reference miei eo eimileo: 'pui-es thioug'iiouf elle several views.

The eoumiorlly used form of rumoer oomsiste of u solid impelorelge disk with bleues ou one sitio only. This consiffi'letiou leaves e liet plum suelace on elle lvuelf: of fa-lue runner., which eliumbels e quuuti/y of Weser that uufle elle' seme pressuie es the 'wu'lef el; *elle periphefy of the ruunei'7 aud us this oliembeleol Water lies no eoxfuoee'ziou i lll fleeuo ssuie ou the uuilef iowmf, 'elle suction of 'the pump uml forces the water' into gluoi. foe stuing omV es 'elle Waffel." uefmlljy een, sonal or other gfrilgy melgeriel. it ouge eue shui?. mul looming, Wearing 'ehem rapidly This ihrus will be equal 'lo Whatevei plessuize Woulfl resul@ from any pres-suie of' Weigel' in the clisclmige of the pump uguiust the aree. ali the beek of the mimos; :for instance.' iff 'le'e huppeuecl 'Eo be 100 squame inches of uee boek oi this runner, the pieesure would be 100 timos Wliuliever 'the discharge pressure in elle 'pump happened ipo be, less the utiuosoleI-ie pressure ou. eine suction sicle of the pump.

ihe essei lol ob'dieet olmy mveuzlou is to eouullze elle )fessure on bolli sides of the L 1 7 n n emmer.. 1u poruke .uevmg suction mieke on oel one siole ol 'the runner eiucl m up fue lios eoulzemplefes o summer having Wetzel lumi@ bleues ui'luuiug feos; :points edjeceul; io elle limb of the manuel fto their enfle, with open .spaces bei-.Ween ehem. und oousequemly wighoufs o. eugeeeuuee for central portion in Whole oi im peut.

in elle geiio state of elle out, loulous couseruolious have been used. lso equalize the pressures ou both ofi folie iimners, unil im the muuuuolme of roto-ry pumpe have used Vlierpeuicoustiuotious in uulemlouvoi' to overcome :Fue uuequel pressures .exilug ou opposiie eiiies of elle ruimer, Wvilh'ssl slaeueul success.. .Fliese Ciiereul: commuosions oii-uumeis l "do not ilustmte, however', oe my preseue iwemxiou eoneemplates elle if euy omi evev construction and aro. i'uugemeni; of eine@ will so distribute Water iou boek siiies il". es :o equalize the oiessuree'to e deggee shut will @revenu e Neuling tluus. or pressure on the ruimere seme as @the atmospheric piessuie ou the sur e 'tion side of the hul) oi' the rumoer, or is so .ueu'fiy so .es Lo pel'mie he ruimer @o be balanced or free from mw harmful' excess of pressure ou elle huele or reel' sicle of the muln mei. l A

Referring izo elle liceWiugsV-Figme 'l shows@ eicle elevation und Fig. 2 shows en edge View of runner embodying my muen- 'gio:n..

This ifuuuel? comprises o. web portion 3, :lfom :the opposie sides of which o. plumli* of blades el pojeot, sind they extend sufficient dislbance from the web bo form pmceioal weee? lifting blades. Y 'Fliese Water lifting" blades pfefez'ebly extend rom the jgeipliezel edge of the web "of tlie\-ru1mer to close to' the opposiie sides of the outer omis of its hub portion 5, which is preferably somewhat Wider than the Width of the yor wedge-shaped terminal point, which preferably projects beyond the periphery of the web the length of its pointed end portion. I have 'referably illustrated four of these water li ting blades, but more or less can be used as desired. These blades are preferably arranged on the opposite sides of the web to register opposite to each other. ,The inner ends of the Water lifting blades are arranged to commence at a short concentric distance 'frorn the hub, which may vary from about three-quarters of an inch to about an inch and a half, and on opposite sides of the hub between opposite pairs of Water lifting blades, apertures 6 are formed through the flange portion of the runner, which form passageways for the water from the side the water is taken, into the surrounding casin` 7 of the pump from its suction pipe. onsequently the 'water passageways permit the water to be drawn by the suction action of the runner when rotating through them. to the opposite side o1e the runner from that the Wateneis drawn into the casin from, and as the w'ater thus drawn throng these water passages to the opposite side of the runner, is under sibstantially the same pressure as the water on they runners intake side, the runner is balanced against side pressures. These runners are cast of any suitable metal, and I referably cast a soft iron core 8, in their hul? portions, which are bored out and are fitted on the end of the runners driving shaft 9, referably by being threaded'thereto, and 'or this purpose I liaveillustrated the core of the hub provided with a thread. The shaft eX- tends into and through a journal box 10, that forms a part of the casing.

My improved runner is adapted for any and all types of water and` sand pumps, and I have illustrated it operatively mounted in the casing of a water pump, the only difference between a water pump and a sand pump being that the casing of a sand pump meissie is provided with a removable lining that takes the weer, and the runner fits inside of the lining. I do not illustrate this lining, as it is of the same shape as the inner wall of the casing.

The operation of the runner is as follows: As the runner rotates, it draws water by suction through the suction inlet ll, and the centrifu al action of the runner draws and forces the water through the apertures 6 in its flange, and the blades on its rear side force or throw out the water the same as those on its suction inlet side, and consequently the water pressures of the water on both sides of the center web of the runner and betweenit and the adjacent walls of the casing are substantially equal and the runner is free rom end pressure and is said to be balanced.

My invention provides a simple balanced runner I'or rotary and centrifugal pumps that can be used in the typesof rotary and centrifugal pumps in common use, and that permits Waterdrawn to one side of the ruuner to iiow to and equalize the pressure on the opposite side of the runner from the suction inlet, and thereby produce a ba 'anced runner.

I Having described my invention, what I claim as new and desire to secure by Letters Patent, is:

A. balancedrunner for centrifugal pumps comprising,` a web portion, a hub portion, Water lifting blades extending from a short distance from said hub portion to and bcyond the periphery of said web portion, said web portion being provided with Water par- 

